Question

Difficulty: EasyOhm's Law Calculations and Concepts

Match each electrical quantity from Ohm's law on the left with its correct algebraic formula on the right.

  • Voltage (VV)I×RI \times R
  • Current (II)VR\frac{V}{R}
  • Resistance (RR)VI\frac{V}{I}

Answer

Voltage (VV) matches with I×RI \times R, Current (II) matches with VR\frac{V}{R}, and Resistance (RR) matches with VI\frac{V}{I}.
According to Ohm's law, voltage equals current multiplied by resistance (V=IRV = IR). Solving for current isolates II by dividing voltage by resistance (I=VRI = \frac{V}{R}), and solving for resistance isolates RR by dividing voltage by current (R=VIR = \frac{V}{I}).

Step-by-Step Solution

1
Identify the base equation of Ohm's law that calculates potential difference.
V=I×RV = I \times R
Ohm's law defines voltage as the product of current and resistance.
2
Rearrange the base formula to solve for current by isolating II.
I=VRI = \frac{V}{R}
Dividing both sides of the base formula by resistance isolates current.
3
Rearrange the base formula to solve for resistance by isolating RR.
R=VIR = \frac{V}{I}
Dividing both sides of the base formula by current isolates resistance.

Key Concept

Ohm's Law algebraic variations (V=IRV = IR, I=VRI = \frac{V}{R}, R=VIR = \frac{V}{I})
Estimated Time:45s
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